Clam ping-machine



(No Model.) 4 Sheets-Sheet l.

' 0. DOMAN.

GLAMPING MACHINE.-

No. 594,610. Patented Now-30,1897.

(No Model.) 4 Sheets-Sheet 2.

H. G. D-OMAN.

GLAMPING MACHINE.

No. 594,610. Patented Nov. 30. 1897.

(No Model.) 4 sheets- Sheet 3.

H. G. DOMAN. GLAMPING MACHINE.

No. 594,610. Patented Nov. 30,1897.

m: NORRIS PETms (:04 PHmo-Lnnc. msnmu'rcm. 01.1

(No Model.) Q 4 Sheets-Sheet 4 H. O. DOMAN.

GLAMPING MACHINE.

No. 594,610. Patented Nov. 30, 1897.

UNITED STATES PATENT rrrcn.

HERMAN O. DOMAN, OF OSHKOSH, WISCONSIN.

CLAMPlN G-MACHINEf SPECIFICATION forming part of Letters Patent No. 594,610, dated November 30, 1897.

Application filed December 24, 1896. flerial N0. 616,857. (No model.)

To all whom it may concern:

, Be it known that I, HERMAN O. DOMAN, of Oshkosh, in the county of WVinnebago and State of Wisconsin, have invented a new and useful Improvement in Clamping-Machines, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention has relation to improvements in clamping-machines for doors, blinds, and

the like.

The device relates to that class of door and blind clamping machines designed to clamp doors,blinds,or analogous articles, the clamps being adjustable, so as to operate on articles of various sizes.

The primary object had in view is to provide a construction whereby the movement of one of the clamping-bars can be regulated so as to cease after apredetermined distance of travel, the actuating mechanism of the machine being then automatically stopped, and to further provide means for instantly starting the machine.

The invention contemplates various other objects, which will be hereinafter more fully understood from the description.

The invention consists of the devices and parts or their equivalents,as hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a front View of the machine. Fig. 2 is a rear View. Fig. 3 is an end elevation. Fig. 4 is a transverse section on the line 4 4: of Fig. 2. Fig. 5 is a fragmentary plan view. Fig. 6 is a detail view of the mechanism for arresting the travel of the upper clamping-bar and for shifting the belts. Fig. 7 is a fragmentary end view of the lower portion of the frame, with parts in section. Fig. 8 is across-section on the line 8 8 of Fig. 3. Fig. 9 is a detail of a fragment of one of the upright rods, showing the adjustable sleeve thereon and the bearing carried by said sleeve; and Fig. 10 is a detail of one end of the horizontal bar, showing the adjustable clamping-j aw thereon.

The frame of the machine consists of two front uprights ll 11, set at an angle of, preferably, from thirty to forty degrees, an upper piece 12, connecting the upper ends of the uprights 11, the end pieces 13 13, and the rear lower connecting-piece 14. their lower ends are provided with forward brackets 27 27.

The uprights at extensions 15 15, each extension being formed with a rounded portion 16.

The numeral 17 indicatesa lower clampingbar, the lower edge of which is grooved to fit the rounded portions 16 of the forward extensions 15. This clamping-bar is provided with a longitudinal flange 18 and has also eX- tendingfrom a centralpoint of its lower edge a foot-treadle l9, said'treadle being advisably secured by means of a bolt 20, extending through the inner end of the treadle and entering the clamping-bar, and also by another bolt 21, extending through aboss of the flange and entering the treadle at a medial point thereof. From the rear face of the clampingbar 17 projects an arm 22, said arm having connected to its free end a rope or cable 23. This rope or cable extends over a pulley 24., mounted in a bracket 25, and the free end of the rope carries a weight 26.

To the rear of the clamping-bar 17 are secured, near opposite ends of said bar, angle- Between the outstanding flanges of these brackets are disposed rods 28 28, said rods being pivoted between the flanges, at the lower ends of said flanges, by means of pivot pins 29 29. The rods are formed or provided with forwardly-projecting extensions, which pass under the lower edge of the clamping-bar 17 and form foot-treadles 3O 30. The pivoted rods pass through sleeves 31 31, each of said sleeves being formed onits rear face with a bearing-box The sleeves are held adjustably on the rods 28 by means of pivoted dogs 33 33, one of the ends of the dogs adapted to engage ratchetteeth 34, formed on the rear edges of the rods. The engaging ends of the dogs are normally held to the ratchet-teeth by means of coiled springs 35, disposed between the non-engaging ends of the dogs and the sleeves. Passing through the bearing-boxes 321s a horizontal bar 36. This bar has mounted thereon adjust-ably at one end, a sleeve 37, which forms a clampingjaw for one end of the door, sash, or other article to be clamped. The adjustability is secured by means of a spring-actuated pivoted dog 38, one end of which is adapted to engage ratchet-teeth 39, formed in the edge of the bar. The opposite end of the bar 36 has secured thereto a block 40, said block pro Vided with a screw-threaded opening,through which a screw 41 passes, said screw provided upon its outer end with a hand-wheel 42 and upon its inner end with a plate 43, said plate forming a clamping-jaw for the other end of the door-sash or the like, which jaw is made adjustable by the turning of the handwheel.

Vertical screw-shafts 44 44 pass through bearings 45 45 therefor in the upper portion of the frame and extend down for a desired distance in recesses 46 46, formed in the uprights 11, finally passing through an upper clamping-bar 47. This upper clamping-bar is also provided with a longitudinal forwardlyextending flange 48. It is held to the uprights 11 by means of angle-pieces 49 49, secured to the rearof the clamping-bar and engaging the edges of the uprights, said anglepieces thereby forming guides for the clamping-bar in its movement up and down. The screw-shafts 44 44 carry at their upper ends, respectively,worm-gears 5O 50. These screwshafts are held in position against vertical movement by means of collars 51 51. Also forming a part of the bearings for the screwshafts and extending rearwardly therefrom are brackets 52 52, the rear ends thereof being bifurcated and the furcate parts forming bearings fora horizontal shaft 53. This shaft is formed near opposite ends with worms 54 54, which mesh with the worm-gears 5O 50 at the upper ends of the screw-shafts 44, so that when the shaft 53 is rotated rotation is also communicated to the screw-shafts. Mounted upon the shaft 53 are two sets of pulleys 55 55 and 55 55, each set consisting of a fast pulley and a loose pulley, the fast pulleys of each set being indicated by the numerals 55 and the loose pulleys by the numerals 55.

Projecting rearwardly from the upper connecting-piece 12 of the frame and preferably integral therewith are arms 56 56, which are connected at their rear ends by a connectingarm 57, said arms 56 56 and 57 forming, in conjunction with the upper connecting-piece 12 of the frame, a supplemental rectangular frame. The upper edge of the upper connecting-piece 12 and the connecting-arm 57 are formed with upwardly-projecting apertured lugs, forming bearings for rock-shafts 58 58. These shafts have mounted fixedly thereon segments 59 59, said segments provided each with a set of forwardly-extending pins 60 60. The rock-shafts also pass loosely through the angles of bell-crank levers 61 61, said levers beinglocated adjacent to the front faces of the segments, and the upper arms thereof carry thereon adjustable weights 62 62. Connected to the ends of the lower arms of the bell-crank levers are rods 63 63. These rods extend downwardly through an gle-braekets 64 64, secured to the rear side of the upper clamping-bar 47. The rod 63 has mounted thereon below the angle-bracket 64 an adjustable stop in the form of a sleeve 65, and the rod 63 has mounted thereon above the angle-bracket 64 a similar adjustable sleeve The rear ends of the rock-shafts 58 have secured fast thereto depending cranks 66 66. The lower ends of these cranks are provided with elongated slots 67 67, in which pins 68 68 extend. These pins project from sliding blocks 69 69, said blocks provided upon their front faces with dovetail recesses 70, which recesses receive a dovetail log 71, which projects from the arm 57. Connected to the under side of the blocks 69 69 by bolts or equivalent means are the belt-shifting arms 72 72, said arms being curved downwardlyat medial points to permit of the clearance of the shaft 53. A beam 73 is secured to the lower edge of the front upper connecting-piece 12 of the frame and extends rearwardly beneath and is secured to a lug 74, projecting downwardly from the arm 57. This beam is extended rearwardly beyond the lug 74 and has connected to the under side of this rear extension the bracket 25 of the pulley 24. Upon the upper side of this rear extension of the beam 73 is connected an arm 75, said arm being formed or provided at its rear extremity with a transverse member 76, the ends of said transverse member forming supports for the rear ends of the belt-shifting arms 72 72. Connected to and extending outwardly from the rear ends of the belt-shifting arms 72 72 and at right angles to said arms are rods '77 77. These rods are respectively provided with curved projecting fingers 78 78 and 78 78, the latter advisably extending from their rod in an opposite direction to the fingers 78 78. One set of curved fingers is adapted when it is desired to cause the upper clamping-bar to travel to lie adjacent to a fast pulley of a set mounted on the shaft 53 and the other curved fingers adjacent to a loose pulley of the other set of pulleys. In the accompanying illustration of myinvention the outer pulleys are loose and the inner pulleys fast. Both sets of fingers are shown in Figs. 1 and 2 as adjacent to the loose pulleys. Belts similar to 79, Fig. 3, when the upper clamping-bar is traveling, pass around a fast pulley of one set and around a loose pulley of the other set and between the curved fingers adjacent to a pulley of the respective sets.

Connected to the front ends of the rockshafts 58 58 are handles 80 80.

In the use and operation of my machine the adjustable stops 65 are adjusted on the rods 63 63 so that said rods may be actuated after the upper clamping-bar has moved the required distance in either direction. The operator next places his foot upon the central foot-treadle 19 and by depressing the same turns the lower clamping-bar so as to bring it forward to a perpendicular position, as shown in Fig. 7 of the drawings. The lower clamping-bar is thus brought to a vertical position in order that the parts of the door or blind may be more conveniently assembled together, as the operator can much better adjust the parts together on the for- Wardly-extending flange of the lower clamping-bar when said bar is in the vertical posi- 594,610 A if.v

tion described than he could if said bar was back in its normal inclined position. VVhen- .the lower clamping-bar is brought to the vertical position just referred to, it is held in such position by the counterbalancing-weight 26. The vertical rods 28 are pivoted to the brackets 27, secured to the rear face of the lower clamping-bar, for the reason that it is not desirable that said vertical rods should be brought to a perpendicular position when the lower clamping-bar is thus adjusted for the assembling of the parts, inasmuch as if said rods were brought to such position they would be in the way. As soon as the parts of the door or blind are assembled together foot-pressure is then exerted on either of-the end treadles 30 30, so as to bring the rods up to the rear side of the door or blind. The clamping-jaw 37 is then adjusted up to one end of the door or blind and the clampingjaw 43 to the other end of the door or blind in order to secure the requisite'end pressure. The lower clamping-bar and the rods are then permitted to turn back to their normal inclined position, as represented in Figs. 1, 3, and 4:- The belt 7 9, which we will say is passing over the fixed pulley, is then driven by any suitable actuating mechanism and the shaft 53 thereby rotated. This rotation is imparted to the screw-shafts 44 44 by means of the meshing Worms and gears. It, for instance, the belt 79 is actuating the fast pulley at the right hand of Fig. 2, this will cause the shaft 53 to rotate in a direction to so rotate the screw-shafts as to cause the upper clamping-bar to travel downwardly. This bar as soon as it reaches the upper side edge of the door or blind compresses the same, and at this moment the stop 65 is so adjusted as to be contacted with by the an gle-bracket 64:. This will cause a movement of the rod 63,'and this rod in turn will actuate the bell-crank 1ever 61. As this bell-crank lever is thus actuated the arm thereof which carries the weight 62 is swung over the curved edge of the segment until the weighted arm of the bell-crank lever contacts with one of the forwardly-extending pins of the segment. As the segment is connected rigidly to the rock-shaft 58, said rock-shaft is thereby turned, and as the rock-shaft is thus turned the crank 66 at the end thereof is operated upon, so as to slide the block 69 in its way, and said block in turn moves the belt-shifting arm 72 laterally, so as to cause a corresponding movement of the rod 77 and the curved belt-shifting fingers 78, so that the belt is transferred from the inner fast pulley at the right hand of Fig. 2 to the companion outer loose pulley. The belt for the left-hand set of pulleys being already adjusted to the loose pulley of said left-hand set the machine of course ceases to operate, as both belts are now passing around the loose pulleys, and consequently no rotation is imparted to the shaft 53. After the upper clamping-bar has compressed the upper side edge of the door or blind for a sufficient length of time the handle 80 is turned. This handle acts directly on the rock-shaft 58' and causes a movement of the segment 59, rigid on said rock-shaft, and as the segment is thus moved one of the forwardly-extending pins 60 thereof acts on the weighted arm of the bell-crank lever 61 and carries said weighted arm therewith. The moment the weighted arm passes a perpendicular position the weight completes the operation-that is to say, turns said weighted arm over, so as to contact with the other pin 60 of the segment and cause said segment, and with it the rock-shaft 58, to turn sufficiently to cause the crank 66' to operate the sliding block 69' and said sliding block in turn to operate the belt-shifting mechanism, so as to carry the belt from the loose pulley on the left of Fig. 2 to the fast pulley, whereby this fast pulley, which receives its motion from one of the belts 7 9, running in an opposite direction to the other similar belt, causes the main shaft 53 to be rotated in an opposite direction and consequently the screw-shafts to be so turned as to cause an upward movement of the upper clamping-bar. IVhen this upper clampingbar has moved a desired distance, the anglebracket 6a will contact with the adjustable stop and through the medium of the rod 63 and connecting mechanism cause the belt to be shifted from the fast pulley at the left of Fig. 2 to the loose pulley.- Both belts being now on the loose pulleys the movement of the upper clamping-bar ceases. This position of the parts is shown in Figs. 1 and 2 of the drawings. When it is desired to again cause the upper clamping-bar to descend, the

other handle is operated, so as to shift the belt from the loose pulley on the right of Fig.

2 to the fast pulley.

It will be noticed that the sleeves 31 011 the rods 28 are adjustable. This permits the horizontal bar 36 to be adj usted'so as to bring the clamping-jaws 37 and 4:3 to the center of any width of door or blind.

What I claim as my invention is 1. In a clamping-machine, the combination, of a frame having an inclined front, a lower clamping-bar normally resting against said inclined front, and fulcrumed thereon, means for swinging said clamping-bar to a vertical position for the assembling of the parts to be clamped thereon, and an upper clamping-bar adapted to travel along the inclined front of the frame toward and from the lower bar.

2. In a clamping-machine, the combination, of an inclined frame, a clamping-bar normally resting against said frame in an inclined position, means for swinging said bar to a vertical position for the assembling of the parts of the article to be clamped, rods pivoted to the clamping-bar, a horizontal bar connected to the rods, clamping-jaws carried by said bar, and another clamping-bar.

3. In aclam pin g-machine, the combination, of an inclined frame, a clamping-bar normally resting against'said frame in an inclined position, means for swinging said clampingbar to a vertical position for the assembling of the parts of the article to be clamped thereon, rods pivoted to the clamping-bar, said rods extending forwardly beyond the clam ping-bar, and formed with foot-treadles, a horizontal bar connected to the rods, and clamping-jaws carried by said rod, and another clamping-bar.

at. In a clamping-machi no, the combination, of an upright frame having upper and lower clamping-bars arranged across and against the face of the frame, said bars adapted to engage the sides of a door, sash, or like device, and one of said bars being adjustable vertically, and a bar arranged against and across the front face of the frame intermediate the upper and lower clamping-bars, and carrying adjustable clamping-jaws thereon, said intermediate bar being adjustable vertically along the front face of the frame, so as to adapt the clamping-jaws thereof to engage the centers of the ends of doors or blinds of varying widths.

5. In a clamping-machine, the combination, of a frame having an inclined front face, opposed elamping-bars adjacent to the inclined face of the frame, one of said bars being movable toward and from the other, upright rods each provided with ratchet teeth, sleeves through which the rods pass, said sleeves provided with bearing-boxes and carrying dogs adapted to engage the ratchet-teeth, and a horizontal rod carried in the bearingboxes, said rod being adjacent to the inclined face of the frame, and intermediate the clampingbars, and said rod carrying adjustable clamping-jaws thereon, the bearing-boxes of the horizontal rod being adjustable vertically on the upright rods, whereby the vertical position of said horizontal rod along the inclined face of the frame may be regulated, so as to adapt the clamping-jaws of said horizontal rod to engage the centers of the ends of doors, or blinds of varying widths.

(5. In a clamping-machine,the combination, of a frame, clamping-bars carried by said frame, screw-shafts passing through one of the bars, a shaft having sets of fast and loose pulleys mounted thereon, a gearing between said shaft and the screw-shafts, a belt for each set of pulleys, said belts running in opposite directions, bell-cran k levers, rock-shafts passing loosely through said bell-crank levers, segments mounted rigidly upon said rockshafts, cranks on the ends of the rock-shafts, belt-shifting mechanism for each set of pulleys and connected to the cranks, and means fol-operating the bell-cranks, when the clamp ing-bar has completed its travel in either direction, whereby one arm of the bell-crank is brought into contact with a projection of the segment, to cause the turning of the segment and the consequent turning of the rock-shaft and the operation of the belt-shifting mechanism.

7. In a clamping-machine,the combination of a frame, clamping-bars carried by said frame, screw-shafts passing through one of the clamping-bars, a shaft having sets of fast and loose pulleys thereon, a gearing between said shaft and the screw-shafts, a belt for each set of pulleys, said belts running in opposite directions, bell-erank levers, rock-shafts passing loosely through said bell-crank levers, segments mounted rigidly upon said rock-shafts, cranks on the ends of the rockshafts, handles on the opposite ends thereof, belt-shifting mechanism for each set of pulleys and connected to the cranks, and means for operating the bell-cranks when the clamping-bar has completed its travel in either direction.

S. In a clamping-machine,the combination, of a frame, clamping-bars carried by said frame, screw-shafts passing through one of said bars, a shaft having sets of fast and loose pulleys thereon, a gearing between said shaft and the screw-shafts, a belt for each set of pulleys, said belts running in opposite directions, bell-crank levers, rock-shafts passing loosely through said bell-crank levers, segments mounted rigidly upon said rock-shafts, cranks on the ends of the rock-shafts, traveling blocks connected to the cranks, belt-shifting arms connected to the blocks, and means for operating the bell-cranks, when the clamping-bar has completed its travel in either direetion.

9. In a clam ping-m achine,the combination, of a frame, clamping-bars carried by said frame, screw-shafts passing through one of the bars, a shaft having sets of fast and loose pulleys mounted thereon, a gearing between said shaft and the screw-shafts, a belt for each set of pulleys, said belts running in opposite directions, bellcrank levers, a weight on one arm of each bell-crank lever, rockshafts passing loosely through said bell-crank levers, segments mounted rigidly upon said rock-shafts and adapted to be turned by contact therewith of the bell-crank levers when said levers are turned, cranks on the ends of the rock-shafts, belt-shifting mechanism for each set of pulleys and connected to the cranks, rods connected to and depending from the bell-crank levers, adjustable stops carried by the rods, and contacts carried by the movable clamping-bar, and through which contacts the depending rods pass freely, said contacts adapted to act, respectively, 011 the completion of the movement of the clampingbar in opposite directions, on the stops of the respective rods, so as to cause said rods to act on the bell-crank levers, and thereby shift a belt from the fast pulley of its set to the loose pulley thereof, in order to arrest the movement of the clamping-bar.

In testimony whereof I {llllX my signature in presence of two witnesses.

HERMAN C, DOMAIN.

Witnesses:

W. R. GnnnNLow, GEORGE IIILToN. 

